RICOH RN5T651 Manual

This document is about the development specifications of RN5T651 Charge-Pump for White LED and Power Supply. It describes the features and characteristics of the product.


RICOH RN5T651 Manual - cover page
Brand
Ricoh
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
31
File format
PDF
File size
2.8 MB
Published
10 July, 2012
Updated
28 September, 2023
MD5 checksum
0C766D626ECD68B4E5FDBD4301E23609

About this manual

The RNST651 is an integrated circuit designed to optimize power supply for white LED applications. It combines a constant frequency charge pump, a step-down DC/DC converter, and two low-noise Low Dropout (LDO) regulators into a single 28-pin Thin QFN package.

What's inside

  • Outline
  • Feature
  • Pin Configuration
  • Block Diagram
  • Functional Blocks
  • Register Map
  • Electrical Characteristics
  • Package Information

Specifications

Charge Pump Current Capability450mA
Flash Current Max300mA
Main LED Current Max25mA
Sub LED Current Max25mA
I2C-Bus Frequency400kHz
Package Type28pin Thin QFN
Body Size4 x 4x 0.8mm

Frequently asked questions

What is the maximum current capability of the white LED charge pump?

The charge pump supports a maximum current capability of 450mA.

What is the maximum current for the flash function?

The flash function operates at a maximum of 300mA.

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